Sediment traps collect dirt, rust, and other debris in the gas line before it gets to the control valve of an appliance. Drips legs are used to collect water droplets. They are located in low areas of a gas line. Drip legs are only needed if the gas is wet.Click to see full answer. Hereof, do you need a drip leg with propane?Drip legs for propane system. Drip legs or sediment traps (the technical term) are supposed to be installed as close as possible to the inlet of every appliance (as required). Per NFPA 54 the following specifically do not need one: Illuminating appliances (gas lamps), ranges, clothes dryers and outdoor grills.One may also ask, does a gas stove need a sediment trap? Gas stoves or cook tops or fireplaces for instance are not required to have them. The purpose of a sediment trap is to prevent any sediment that may be in a gas supply line from entering into the controls of a heater or water heater. Keeping this in view, what is a drip leg on gas line? A sediment trap which is sometimes called a drip leg (although technically different) is a capped off section of gas line which is installed in such a way that any debris or moisture in the gas line will be caught in the trap where it can be cleaned out easily.How long does a drip leg need to be?Must be made of a tee fitting with a capped nipple, a minimum of 3 inches in length, in the bottom opening of the run of the tee. Provide a 90-degree change of direction of gas flow, to help prevent sediment from flowing over the trap.
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